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1Back to top Go down   Bosch versus NGK plugs Empty Bosch versus NGK plugs Wed Aug 18, 2010 6:28 pm

Ralph

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I replaced my spark plugs a few weeks ago with NGK plugs. Today a BMW mechanic whom I have trusted in the past told me to switch to Bosch. Apparently there is a contact problem between the plug and the boot with the NGK plugs. Do any of you have an opinion on this matter?

Thanks
Ralph

    

2Back to top Go down   Bosch versus NGK plugs Empty Re: Bosch versus NGK plugs Wed Aug 18, 2010 7:24 pm

Ned

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I fail to see this... NGKs are universally used as are Bosch on all manner of new and old vehicles. I've used both on Ks and other bikes...without problems.

Although the plugs are important there are, IMHO, just three things that I would be concerned about:
a. replace normal plugs with the resistive type (potential ignition coil problems),
b. change heat range (run too hot or cold) and
b. replace the normal plug with a platinum type (better spark and plug life).

These three things are the only things I would be concerned about and have a real performance effect. German, Japanese, American.... they all work just the same.


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I reserve the right to voice my opinions on any subject known to man
Ned

05/1986 (K55) K100RS Motorsport (Europe), Production Code: 0503, 110k km, VIN:0140519 (SOLD)
1976 Honda Goldwing GL1000 (naked)
1997 BMW K1200RS red, VIN: WB10544A1VZA22667
    

3Back to top Go down   Bosch versus NGK plugs Empty Re: Bosch versus NGK plugs Wed Aug 18, 2010 7:26 pm

Crazy Frog

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I am running with NGKs for year and never experienced any problems.
Your mechanics may have had previous problem with NGKs, and I will not put him down for this remark. The fact is that apparently Bosch stopped manufacturing the spark plugs for our bikes and we may have to switch to NGK or Champion.


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Bosch versus NGK plugs Frog15Bosch versus NGK plugs Logo2101986 k75, 1985 K100rt, 1985 K100rt/EML GT2 sidecar, 1999 K1200lt/Hannigan Astro Sport sidecar.
    

4Back to top Go down   Bosch versus NGK plugs Empty Re: Bosch versus NGK plugs Wed Aug 18, 2010 9:14 pm

Finally_A_K

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I am currently using NGK's, resistor type , and I have no problems.

Rick

    

5Back to top Go down   Bosch versus NGK plugs Empty Re: Bosch versus NGK plugs Thu Aug 19, 2010 6:44 pm

Guest

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NGK, the original copper core since 1958! I've used and sold them since the late '70s with only one ever failing on a personal vehicle of mine in that time. I use DR7EA in my K100RS. I have no problem with Bosch plugs either. I think you will not notice any difference using either brand, though availability might be an issue with Bosch.

    

6Back to top Go down   Bosch versus NGK plugs Empty Re: Bosch versus NGK plugs Fri Aug 20, 2010 9:26 am

badgerdid

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I use ngk's and have no probs at all, i do also have the ngk plug leads fitted too.

    

7Back to top Go down   Bosch versus NGK plugs Empty Re: Bosch versus NGK plugs Fri Aug 20, 2010 3:12 pm

ReneZ

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I think the comment might be because NGK plugs are not normally delivered with the screw-on bobbins that the K plugs need. The Bosch are fitted with them originally.


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Greetings from Florida! Having a 'new' K  :cyclops:    Surprised-o: 

Rene


BMW K100 - 1985 (0030029) Bosch versus NGK plugs Rain
BMW K1200GT - 2003 (ZK01223)
    

8Back to top Go down   Bosch versus NGK plugs Empty Re: Bosch versus NGK plugs Fri Aug 20, 2010 5:13 pm

K-BIKE

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I agree with all the above, I have used NGK's in many bikes and cars all with perfect results. The quality is excellent and Rene's comment is spot on but once you have a set of bobbins that is no problem. I also have found that Iridium plugs are excellent improving spark efficiency and life but at a purchase cost. The resistor/no resistor issue depends on the year, earlier K's used non resistor plugs and had the resistance in the cap, whereas the later ones used resistor plugs and no cap resistance. The exception to that was the K75 which had a spark gap in the lead.
Regards,
K-BIKE

    

9Back to top Go down   Bosch versus NGK plugs Empty Re: Bosch versus NGK plugs Sun Aug 22, 2010 6:19 am

Guest

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Was clearing out the top shelf of my top tool box in the garage today and discovered about twenty of those requisite Bosch to NGK conversion spark plug bobbins if anyone needs any... Gimme your address and I'll post 'em to you, gratis.
Wink

    

10Back to top Go down   Bosch versus NGK plugs Empty Re: Bosch versus NGK plugs Mon Jul 04, 2011 2:03 am

Oldgoat

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Hey TWB,

Do you still have any of those conversion bobbins around the garage?
Looks like I'm going to need some...


OG

    

11Back to top Go down   Bosch versus NGK plugs Empty Re: Bosch versus NGK plugs Mon Jul 04, 2011 4:29 am

Comberjohn

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Hi og. I got some from the local lawnmower repair shop. They took them from old plugs that they had binned. FREE!

http://www.johnsdrivingschool.co
    

12Back to top Go down   Bosch versus NGK plugs Empty Re: Bosch versus NGK plugs Mon Jul 04, 2011 10:37 am

Oldgoat

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Nice! Yeah, I'm going to try and score some freebies somewhere...

    

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